659 nm Avant^™ Dichroic Beamsplitter

Semrock Part Number: AF659-Di01-25x36

IDEX Part Number: FL-433901 /

Optical Specifications	Value
Transmission Band 1	Tavg > 93% 664 – 740 nm
Reflection Band 1	Ravg > 98% 580 – 653 nm
Edge Wavelength 1	659 nm
General Filter Specifications	Value
Angle of Incidence	45 ± 1.5 degrees
Cone Half-angle	2 degrees
Optical Damage Rating	Testing has proven to show no signs of degradation when exposed to at least 6.0 W of power from an unfiltered xenon arc lamp over a 25 mm diameter (corresponding to 1.2 W/cm2) for over 500 hrs.
Flatness / RWE Classification	Standard Epi-fluorescence
Physical Filter Specifications	Value
Transverse Dimensions (L x W)	25.2 mm x 35.6 mm
Transverse Tolerance	± 0.1 mm
Clear Aperture	≥ 80% (elliptical)
Scratch-Dig	60-40
Filter Thickness (unmounted)	1.05 mm
Filter Thickness Tolerance (unmounted)	± 0.05 mm
Orientation	Reflective surface marked with part number - Orient in direction of incoming light

Topic	Description
Cleaning Optical Filters	Instructions for cleaning hard coated optical filters
Cube Assembly Instructions	PDF and video instruction for installing filters into popular filter cubes
Filter Reliability	Compares the performance and reliability of hard coated filters to traditional soft-coated filters and provides information about the testing standards for Semrock filters
Flatness of Dichroic Beamsplitters	Describes the impact of non-flat dichroic beamsplitters on microscope image fidelity
Measuring Light with Wavelengths & Wavenumbers	Compares units of wavelength to wavenumbers and provides formulas for calculating wavenumber shift
Measurement of Optical Filters	Describes the problems encountered when measuring optical filter spectra with commercially available spectrophotometers
Laser Damage Threshold	Provides information for calculating laser damage threshold for pulsed and continuous wave lasers
Tunable Bandpass Filters	Compares the spectral response of tunable bandpass filters to traditional filter spectra at non-normal angles of incidence

Link	Description
Request a Drawing	Looking for an optical filter drawing file for this product? Request one now!
Request Custom Optical Filters	Contact us today to start a conversation about custom optical filters.
Download Optical Filters 101 Guide	Find an in-depth overview of optical filter principles, specifications, and applications. Request a digital copy of this guide now.
Request Clean Filter Checklist Poster	Looking to clean your optical filters? Need instructions? Request a printed copy of our Clean Filter Checklist Poster.

Optical Specifications: Value
Transmission Band 1: Tavg > 93% 664 – 740 nm
Reflection Band 1: Ravg > 98% 580 – 653 nm
Edge Wavelength 1: 659 nm
General Filter Specifications: Value
Angle of Incidence: 45 ± 1.5 degrees
Cone Half-angle: 2 degrees
Optical Damage Rating: Testing has proven to show no signs of degradation when exposed to at least 6.0 W of power from an unfiltered xenon arc lamp over a 25 mm diameter (corresponding to 1.2 W/cm2) for over 500 hrs.
Flatness / RWE Classification: Standard Epi-fluorescence
Physical Filter Specifications: Value
Transverse Dimensions (L x W): 25.2 mm x 35.6 mm
Transverse Tolerance: ± 0.1 mm
Clear Aperture: ≥ 80% (elliptical)
Scratch-Dig: 60-40
Filter Thickness (unmounted): 1.05 mm
Filter Thickness Tolerance (unmounted): ± 0.05 mm
Orientation: Reflective surface marked with part number - Orient in direction of incoming light

Topic	Description
Cleaning Optical Filters	Instructions for cleaning hard coated optical filters
Cube Assembly Instructions	PDF and video instruction for installing filters into popular filter cubes
Filter Reliability	Compares the performance and reliability of hard coated filters to traditional soft-coated filters and provides information about the testing standards for Semrock filters
Flatness of Dichroic Beamsplitters	Describes the impact of non-flat dichroic beamsplitters on microscope image fidelity
Measuring Light with Wavelengths & Wavenumbers	Compares units of wavelength to wavenumbers and provides formulas for calculating wavenumber shift
Measurement of Optical Filters	Describes the problems encountered when measuring optical filter spectra with commercially available spectrophotometers
Laser Damage Threshold	Provides information for calculating laser damage threshold for pulsed and continuous wave lasers
Tunable Bandpass Filters	Compares the spectral response of tunable bandpass filters to traditional filter spectra at non-normal angles of incidence

Link	Description
Request a Drawing	Looking for an optical filter drawing file for this product? Request one now!
Request Custom Optical Filters	Contact us today to start a conversation about custom optical filters.
Download Optical Filters 101 Guide	Find an in-depth overview of optical filter principles, specifications, and applications. Request a digital copy of this guide now.
Request Clean Filter Checklist Poster	Looking to clean your optical filters? Need instructions? Request a printed copy of our Clean Filter Checklist Poster.

Specifications